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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 12 — Jun. 15, 2014
  • pp: 3547–3550

Solving the inverse grating problem with the naked eye

Sandy Peterhänsel, Hannu Laamanen, Markku Kuittinen, Jari Turunen, Christof Pruss, Wolfgang Osten, and Jani Tervo  »View Author Affiliations

Optics Letters, Vol. 39, Issue 12, pp. 3547-3550 (2014)

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We make use of the color sensitivity of the naked human eye to solve the inverse grating problem. We conduct color-matching experiments between simulated colors and the color of the zero diffraction order, and show that human color vision may reveal structure dimensions at an accuracy in the order of ten nanometers, which is comparable to the precision of destructive methods such as scanning electron microscopy. Our results suggest that for a wide range of structures, the color observation may help to get quick, but still accurate, results, without any sophisticated instrumentation.

© 2014 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(120.4630) Instrumentation, measurement, and metrology : Optical inspection
(330.6180) Vision, color, and visual optics : Spectral discrimination

ToC Category:
Vision, Color, and Visual Optics

Original Manuscript: March 12, 2014
Revised Manuscript: May 13, 2014
Manuscript Accepted: May 13, 2014
Published: June 9, 2014

Virtual Issues
Vol. 9, Iss. 8 Virtual Journal for Biomedical Optics

Sandy Peterhänsel, Hannu Laamanen, Markku Kuittinen, Jari Turunen, Christof Pruss, Wolfgang Osten, and Jani Tervo, "Solving the inverse grating problem with the naked eye," Opt. Lett. 39, 3547-3550 (2014)

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